213151245 has 16 divisors (see below), whose sum is σ = 342462912. Its totient is φ = 113207040.

The previous prime is 213151241. The next prime is 213151249. The reversal of 213151245 is 542151312.

It is a happy number.

213151245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213151241) and next prime (213151249).

It is not a de Polignac number, because 213151245 - 2² = 213151241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213151241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25867 + ... + 33096.

It is an arithmetic number, because the mean of its divisors is an integer number (21403932).

Almost surely, 2^213151245 is an apocalyptic number.

It is an amenable number.

213151245 is a deficient number, since it is larger than the sum of its proper divisors (129311667).

213151245 is a wasteful number, since it uses less digits than its factorization.

213151245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59212.

The product of its digits is 1200, while the sum is 24.

The square root of 213151245 is about 14599.7001681541. The cubic root of 213151245 is about 597.3505820832.

The spelling of 213151245 in words is "two hundred thirteen million, one hundred fifty-one thousand, two hundred forty-five".